mirror of
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65 lines
2.4 KiB
Dart
65 lines
2.4 KiB
Dart
// Copyright 2018 Google Inc. Use of this source code is governed by an
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// MIT-style license that can be found in the LICENSE file or at
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// https://opensource.org/licenses/MIT.
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import 'dart:io';
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import 'package:archive/archive.dart';
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import 'package:dart2_constant/convert.dart' as convert;
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import 'package:grinder/grinder.dart';
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import 'package:pub_semver/pub_semver.dart';
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import 'package:yaml/yaml.dart';
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/// The version of Dart Sass.
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final String version =
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loadYaml(new File('pubspec.yaml').readAsStringSync())['version'] as String;
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/// The version of the current Dart executable.
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final Version dartVersion =
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new Version.parse(Platform.version.split(" ").first);
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/// Whether we're using a dev Dart SDK.
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bool get isDevSdk => dartVersion.isPreRelease;
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/// Ensure that the `build/` directory exists.
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void ensureBuild() {
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new Directory('build').createSync(recursive: true);
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}
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/// Reads [file], replaces all instances of SASS_VERSION with the actual
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/// version, and returns its contents.
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String readAndReplaceVersion(String file) =>
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new File(file).readAsStringSync().replaceAll("SASS_VERSION", version);
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/// Returns the environment variable named [name], or throws an exception if it
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/// can't be found.
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String environment(String name) {
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var value = Platform.environment[name];
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if (value == null) fail("Required environment variable $name not found.");
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return value;
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}
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/// Creates an [ArchiveFile] with the given [path] and [data].
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///
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/// If [executable] is `true`, this marks the file as executable.
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ArchiveFile fileFromBytes(String path, List<int> data,
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{bool executable: false}) =>
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new ArchiveFile(path, data.length, data)
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..mode = executable ? 495 : 428
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..lastModTime = new DateTime.now().millisecondsSinceEpoch ~/ 1000;
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/// Creates a UTF-8-encoded [ArchiveFile] with the given [path] and [contents].
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///
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/// If [executable] is `true`, this marks the file as executable.
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ArchiveFile fileFromString(String path, String contents,
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{bool executable: false}) =>
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fileFromBytes(path, convert.utf8.encode(contents), executable: executable);
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/// Creates an [ArchiveFile] at the archive path [target] from the local file at
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/// [source].
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///
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/// If [executable] is `true`, this marks the file as executable.
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ArchiveFile file(String target, String source, {bool executable: false}) =>
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fileFromBytes(target, new File(source).readAsBytesSync(),
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executable: executable);
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